diff --git a/tools/ntstatus.bat b/tools/ntstatus.bat
new file mode 100644
index 00000000..fd2c0428
--- /dev/null
+++ b/tools/ntstatus.bat
@@ -0,0 +1,14 @@
+@echo off
+
+setlocal
+
+if X%1==X (echo usage: %~n0 VALUE >&2 & exit /b 1)
+
+set RegKey="HKLM\SOFTWARE\Microsoft\Windows Kits\Installed Roots"
+set RegVal="KitsRoot10"
+reg query %RegKey% /v %RegVal% >nul 2>&1 || (echo Cannot find Windows Kit >&2 & exit /b 1)
+for /f "tokens=2,*" %%i in ('reg query %RegKey% /v %RegVal% ^| findstr %RegVal%') do (
+    set KitRoot=%%j
+)
+
+findstr /R /I "\<0*[Xx]*%1[Ll]*\>" "%KitRoot%Include\10.0.10586.0\shared\%~n0.h"
diff --git a/tools/winerror.bat b/tools/winerror.bat
new file mode 100644
index 00000000..fd2c0428
--- /dev/null
+++ b/tools/winerror.bat
@@ -0,0 +1,14 @@
+@echo off
+
+setlocal
+
+if X%1==X (echo usage: %~n0 VALUE >&2 & exit /b 1)
+
+set RegKey="HKLM\SOFTWARE\Microsoft\Windows Kits\Installed Roots"
+set RegVal="KitsRoot10"
+reg query %RegKey% /v %RegVal% >nul 2>&1 || (echo Cannot find Windows Kit >&2 & exit /b 1)
+for /f "tokens=2,*" %%i in ('reg query %RegKey% /v %RegVal% ^| findstr %RegVal%') do (
+    set KitRoot=%%j
+)
+
+findstr /R /I "\<0*[Xx]*%1[Ll]*\>" "%KitRoot%Include\10.0.10586.0\shared\%~n0.h"